<template>
    <div class="login_container">
        <div class="login_box">
            <!-- 头像区域 -->
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="">
            </div>
            <!-- 登录表单区域 -->
            <el-form label-width="0px" class="login_form" :model="loginForm" :rules="loginFormRules" ref="loginFormRef">
                <!-- 用户名 -->
                 <el-form-item prop="username">
                    <el-input prefix-icon="iconfont icon-user" v-model="loginForm.username"></el-input>
                 </el-form-item>
                 <!-- 密码 -->
                 <el-form-item prop="password">
                    <el-input prefix-icon="iconfont icon-3702mima" v-model="loginForm.password" type="password"></el-input>
                 </el-form-item>
                 <!-- 按钮区域 -->
                 <el-form-item class="btns">
                    <el-button type="primary" @click="login">登录</el-button>
                     <el-button type="info" @click="resetLoginForm">重置</el-button>
                 </el-form-item>

            </el-form>
            

        </div>
    </div>
</template>
<script>
export default {
 data() {
    return {
        //这是登录表单的数据绑定对象
        loginForm: {
            username: 'admin',
            password: '123456'
        },
        // 这是表单的验证规则对象
        loginFormRules: {
            //验证用户名是否合法
            username: [
                { required: true, message: '请输入登录名称', trigger: 'blur' },
                { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur'}

            ],
            //验证密码是否合法
            password:[
                { required: true, message: '请输入登录密码', trigger: 'blur'},
                { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur'}

            ]
        }

    }
 },
 methods: {
     //点击重置按钮，重置登录名单
     resetLoginForm() {
         console.log(this);
         this.$refs.loginFormRef.resetFields();
     },
     login() {
         this.$refs.loginFormRef.validate(async valid => {
            //  console.log(valid);
             if(!valid) return;
            // const result = await this.$http.post("login", this.loginForm);
            // console.log(result);
             const {data: res} = await this.$http.post("login", this.loginForm);
             if(res.meta.status !== 200) return this.$message.error("登录失败!");
             this.$message.success("登录成功");
            // 1. 将登录成功之后的 token 保存到客户端的 sessionStorage 中
             window.sessionStorage.setItem('token', res.data.token);
            // 2. 通过编程式导航跳转到后台主页，路由地址是 /home
            this.$router.push("/home");


         });
     }
 }
};
</script>
<style lang="less" scopde> 
.login_container{
    background-color: #2b4b6b;
    height: 100%;
}

.login_box{
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);

    .avatar_box{
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    img{
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eee;
    }
    }
}

.login_form{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}

.btns{
    display: flex;
    justify-content: flex-end;
}



</style>